LST Oracle Mechanism

Overall Architecture

AIBTC LST Function related to the Oracle

Values based on shares

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/**
 * @notice Get amount of underlying asset for a given amount of shares.
 */
    function getValueByShares(uint256 shares) external view returns (uint256 value);

Decimals of values

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/**
 * @notice Get the decimals of the values.
 */
function getOracleDecimals() external view returns (uint8);

Contract address of LST Oracle

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/**
 * @notice Get the address of LST Oracle.
 */
function getOracle() public view returns (address);

LST Oracle Contract

Get Nav

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function getNav(address erc20) external view returns (uint256);

Nav Decimals

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function navDecimals(address erc20) external view returns (uint8);

Pool Nav Oracle

Get Nav

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function getSubscribeNav(bytes32 poolId_, uint256 time_) 
    external view returns (uint256 nav_, uint256 navTime_);

Set Nav

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function setSubscribeNavOnlyMarket(bytes32 poolId_, uint256 time_, uint256 nav_) external;